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Reject unsupported JSON map key kinds - #1787
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dajiaohuang wants to merge 3 commits into
Open
dajiaohuang wants to merge 3 commits into
dajiaohuang wants to merge 3 commits into
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The static JSON marshal model currently accepts every basic map key type, but encoding/json only supports string and integer keys (unless a key implements encoding.TextMarshaler). This misses bool, float, and complex keys, which fail at runtime. Restrict builtin support to strings and integers and add analyzer regression cases.
Review update: the unrelated generic-instantiation change and its fixture were removed through a normal follow-up commit; #1764 tracks that fix separately. Current-head validation: go test ./staticcheck/sa1026 (three tests) passed; git diff --check passed. Prior validation text above is historical unless repeated here.